As a companion to my other thread, this one is about rhetorical tactics used by the Left. The current trend in Left-wing rhetoric is flagrant use of the race card (at least in certain areas). "Racism" and other "-ism" words have suddenly become the new shut-down comment from the Left. Where does this trend come from? Is it just because the left is currently the party in power? Is it purely a defensive strategy? Simple, emotionally charged rhetoric? Or is it something more? Discuss.